You will play as the goblin infused strength focused Orc, the technologically advanced economical Human, the hyper-aggressive soul thirsty Lost, or the adaptive magic crazed Naga.
Included are highly customized tech trees for each race, new heroes, units, abilities, spells, upgrades, integrated sea units, specialized terrain, and support features.

Human:
-Retribution Wagon base damage increased from 6 to 16
-Phoenix health lowered from 1250 to 850, decay rate reduced from -25 to -15
-Argonaut gold cost reduced from 300 to 250
-Battleship gold cost reduced from 460 to 350
-Gryphon Rider gold cost reduced from 580 to 520
-Improved Masonry has 3 levels again
-Barracks, Lumber Mill, and Blacksmith now have Reclaim. Reclaim is now a research

Lost:
-Ravager gold cost reduced from 590 to 450
-Unbridled Frenzy renamed to Frenzy and is now a passive that increases attack damage every attack as long as an enemy unit is within attack range
-Terror checks for research
-Dark Retreate is now Dark Fold, found on the Ravager
-Incursus removed, I found it had no real purpose as it was orignally the medium naval unit as sort of morphed into a semi-useful air unit. Four air units is too many.
-Stygian Monarch gains Phase
-Abyss now requires Parapet

Human:
-Pressure Mine replaced with Fire Burst
-Fire Support mana cost reduced from 90 to 65, and cooldown from 25 to 15
-Cleansing Beams damage reduced from 150/200 to 75/140
-Dematerialize mana cost reduced from 80 to 60
-Hopper now has Ale Screen
-Soul Imitation has been replaced with Resistant Armor which provides hero like armor against magic damage. Negative effects will have the same duration as they would on heroes. Soul Imitation was not providing a racial benefit as it was intended to.
-Demolition Team now has Resistant Armor (racial ability)
-Thors Might replaced with research option Refined Smithing
-Lumber Mill/Blacksmith upgrades re-divided
-Footmen now have Defend by default, % chance increased to 50% from 30%, non-reflected damage taken decreased from 50% to 25%
-Sheep stock maximum reduced from 4 to 3
-Long Rifles merged in Marksmanship, gold cost increased from 100 to 150

Lost:
-Conflagration replaced with Corpse Burn
-Reformation max healed reduced from 25 per second (625) to 10 per second (250)
-Essence now provides a 10% life steal when off blight. This is a further incentive to be aggressive.
-Dark Retreat and Reformation now have a cast range of 10000, Reformation is now an 650 area target spell for 185 mana that lasts 15 seconds
-Reprisal now a starting ability and deals 25% of melee attack damage back to the enemy (can be upgraded to 33%), Terror must be researched
-Toxic Carapace no longer returns damage
-Corpse Burn duration reduced from 15 to 10 seconds
-Ravager movement speed reduced to 90 from 125
-Derelict movement speed reduced from 200 to 150
-Cede redone. It now generates a copy of a target organic non-hero non-neutral unit. You are required to have the food cost of the target unit available. It does not transfer racial abilities, upgrades, or buffs. The copy will gain Essence.
-Corrus food cost increased to 2
-Razor food cost increased to 3
-Consume has mana cost and cooldown
-Scourge was replaced with Desecrator and Nightmare removed from summon list on Derelict

All:
-Heroes now have Assault rather than support air units
-Crystal Lake terrain revised, added Tavern

Lost:
-Collateral Destruction references Scorch instead of Immolation
-Terminus Cruxs can be repaired
-Terror chance and duration are now correct in the description
-Derelict now directly summons units rather than using a spellbook. This was done as there was no way around the mana cast issues inherent to control groups and spellbooks. The result is a much more user friendly unit.
-Proxy summon upgrade no longer allows a player to go over the food limit
-Stygian Bastille references Desecrator instead of Leech
-Noxium cast range adjusted (It was set too low and interfered with casting)
-Mana Circulation and Conduit FX now works with Max Tech voting option
-Blade Shards now correclty assigns damage

Cosmetic Changes:

Orc:
-Mistress renamed to Huntress, new icon
-Giant Sea Turtle has new icon
-Bloodlust has new icon
-Altar of Blood renamed to Mound

Human:
-Elite Rifleman renamed Combat Engineer

Lost:
-Collateral Destruction has new icon
-Ravager has new model/icon
-Mana Current buff effect changed